docs: def to_rectified(self, x, y):
          """
          Convert the input (x, y) positions from the original
          (unrectified) image to the rectified image.
  
          Parameters
          ----------
          x, y:  float or array-like of float
              The zero-index pixel coordinates in the original
              (unrectified) image.
  
          Returns
          -------
          x, y:  float or array-like
              The zero-index pixel coordinates in the rectified image.
          """
  
          return self._reproject(self.wcs_original,
                                 self.wcs_rectified)(x, y)